Add Warhammer Global Rankings 2026 circuit, restricted to 500mi of St. Louis

This is the national ITC league, not a BCP "circuit" — verified it has
523 upcoming events nationwide, so without the distance restriction
this would swamp the page. Filtered to St. Louis + 500mi it's 99,
which matches the point of this page (events the team would actually
consider attending).

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01SBzcNkW7JcYipnAX6HfgmK

sites/events/src/main.js

@@ -48,18 +48,22 @@ loadHTML('/footer.html', 'footer');
    which the viewer controls. Events with no coordinate data are
    excluded rather than assumed to be in range.
    ============================================================ */
+// St. Louis, MO — reference point for circuits restricted by distance.
+const ST_LOUIS = { lat: 38.6270, lon: -90.1994 };
+
 const CONFIG = {
   circuits: [
     { id: "Teqdr6p0aGvO", name: "Away Games 2025/26 ITC Season" },
     { id: "t5kk3NvGDMXc", name: "National Tabletop League (NTL) 8-Player Circuit" },
     { id: "m4OIU24N0IZO", name: "TEO 2026 Circuit" },
     { id: "cY0LeCAPfyiG", name: "2026 Lord Marshal Conference" },
+    // The broader national league, not a "circuit" in BCP's own sense —
+    // restricted to 500mi of St. Louis or this would show ~500 events
+    // nationwide instead of the ~100 actually worth seeing locally.
+    { id: "BYaaUfKum7z0", name: "Warhammer Global Rankings 2026", near: { ...ST_LOUIS, miles: 500 } },
   ],
 };
 
-// St. Louis, MO — reference point for circuits restricted by distance.
-const ST_LOUIS = { lat: 38.6270, lon: -90.1994 };
-
 // Great-circle distance in miles between two lat/lon points (haversine).
 function milesBetween(lat1, lon1, lat2, lon2) {
   const R = 3958.8;